Results 31 to 40 of about 4,106 (254)
A Method for Calculating Grounding Resistance of Reinforced Concrete Foundation Grounding Systems
Energies, 2022 Tower foundations have been used as grounding electrodes to reduce the area of the grounding devices. However, it is difficult to calculate the grounding resistance due to the complex structure of the reinforced concrete foundation.
Bowen Dou, Rui Liu, Youping Tu, Bo Zhang
doaj +1 more source
FEBS Open Bio, EarlyView.In this study, a novel esterase from the thermoacidophilic archaeon Thermoplasma acidophilum was biochemically and structurally characterized. Our results demonstrate that Ta0887 is a highly thermostable esterase that preferentially hydrolyzes p‐nitrophenyl hexanoate and possesses an α‐helical cap domain that likely contributes to its substrate ...
Alejandro Delgado‐Rey +4 more
wiley +1 more source
Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level
Aging and Cancer, EarlyView.This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley +1 more source
Advanced Engineering Materials, EarlyView.New features on yttria‐stabilized zirconia after exposure at 1500°C: Newly discovered pyramidal structures on an old material. After exposure at 1550°C on the cross section of YSZ new features, namely pyramidal structures are discovered. These structures grow with time, increase in numbers, appear as singularities, are often arranged in strings, and ...
Doris Sebold +2 more
wiley +1 more source
Seasonal Frozen Soil Electrical Resistivity Estimation Based on Capillary Fractal Model
Water Resources ResearchFrozen soil resistivity exhibits high sensitivity to temperature variations and ice‐water distribution. The conversion of soil water content (SWC) and resistivity based on petrophysical relationships enables the characterization of spatial distribution ...
Lige Bai +4 more
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Soil Site Investigations Using 2D Resistivity Imaging Technique [PDF]
Engineering and Technology Journal, 2013 The use of 2D Electrical Resistivity Imaging (ERI) technique in combination with geotechnical and geological data allow the determination of the lithological composition and detailed internal architecture of the subsurface and understanding the ...
Hussein H. Karim +2 more
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Resistance of Soil to Liquefaction and Settlement
Soils and Foundations, 1971 This paper presents a quantitative method of organizing field observations concerning liquefaction and non-liquefaction during actual earthquakes. The ratio τc/σ^-V is evaluated for 13 sites affected by 8 earthquakes and plotted against relative density (τc is the average peak dynamic stress during the earthquake, and σ^-V is the vertical effective ...
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Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
wiley +1 more source
The Resistance of Soil Structure to Consolidation
Canadian Geotechnical Journal, 1965 The rate at which soil specimens are compressed in the standard consolidation test is farther from reality than the rate of strain in any other test. For a short period after the application of a load increment the rate of compression may be several million times faster than that experienced in the field. This paper describes a series of tests carried
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Radiation Resistance of Soil Azotobacter [PDF]
Journal of Bacteriology, 1965 Vela, Gerard R. (School of Aerospace Medicine, Brooks Air Force Base, Tex.), and Orville Wyss . Radiation resistance of soil Azotobacter . J. Bacteriol. 89: 1280–1285.
G R, VELVA, O, WYSS
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